(8 p.m., NBC)Monday 6.01Speidi vs. Sanjaya? The rumble in the jungle is back and better than ever. Follow a plucky band of celebrities — some admittedly of the 15-minute and famous-for-being-famous variety — as they compete for food, supplies and luxury items in a remote locale — Costa Rica this time. Sure, it’s a guilty pleasure, but don’t go beating yourself up too badly: The stars are playing for charity, after all.